RMAN-06149: cannot BACKUP DATABASE in NOARCHIVELOG mode

Running a database in noarchivelog mode disables the possibility of database recovery as we will not have any archived redo logs to apply to the restored data files and only way of recovery is reverting database to the last full backup and in the same process be ready to loose all changes made after the full backup. This is why oracle does not recommend running database in NOARCHIVELOG mode and does not allow full database backups when database is on noarchivelog mode.

Here we will discuss how to workaround the “RMAN-06149: cannot BACKUP DATABASE in NOARCHIVELOG mode” error while taking RMAN database backups while running the DB on NOARCHIVELOG mode.